Showing papers by "Ladoke Akintola University of Technology published in 1998"

Heavy Metals Analysis of Solid Municipal Wastes in the Western Part of Nigeria

Abstract: The heavy metal contents of solid municipal wastes produced at various (sites) in Lagos (1), Ibadan (1), Ogbomoso (2), Ilorin (1), Osogbo (1), Ile-Ife (1), Ejigbo (2), Iwo (1) and Oyo (1) were measured. The solid municipal wastes produced in high density towns showed higher levels of iron, zinc, and cadmium (P <0.05). There is no significant difference (P <0.05) between the mean concentrations of other metals in the high and low density towns. The inter-element correlation and significance of some heavy metal levels in Nigerian environment are discussed.

Nutritive value of hot water- or cocoa-pod ash solution-treated cocoa bean cake for broiler chicks

Abstract: 1. The effectiveness of boiling (90 C for 75 min) in water and alkali (cocoa-pod ash CPA solution) treatments for reducing the antinutritional factor (theobromine) in cocoa bean cake (CBC) and the influence of these treatments on the chemical composition, gross energy and metabolisable energy (ME) of CBC to the broiler chicken were examined. 2. Boiling did not affect crude protein content but resulted in lower ash, crude fibre, ether extract and gross energy values, and a 56% reduction in theobromine, while the use of increasing concentrations of cocoa-pod ash solution decreased crude protein, ether extract, theobromine and gross energy. 3. Mineral elements were significantly affected both by boiling and by cocoa-pod ash solution treatments. 4. There were no significant effects of hot water-treated or 5 g CPA/kg treated CBC on ME or MEn. However, efficiency of energy utilisation was improved. 5. Nutritional evaluation showed that there was a general decrease in performance at high dietary concentrations o...